[Wien] Error in parallel execution

Laurence Marks L-marks at northwestern.edu
Tue Jul 27 17:26:58 CEST 2010


It is a system problem. Maybe the relevant disc is not mounted on the
remote node or something? Try doing a simple ssh to the node and test
things like ls, cd etc. Too many possibilities to list here. Good
luck, just try computer experiments until you track it down.....

2010/7/27 Marcos Veríssimo Alves <marcos.verissimo.alves at gmail.com>:
> Hi Laurence,
> I am not running mpi, only using rsh/ssh for the plain k-point
> parallelization. I couldn't really figure out how to make a .machines file
> to run parallel over k-points on mpi, with one processor per machine.
> However, I think Stefaan's tip has gone right to the point: in my job error
> file I get the following errors:
>  LAPW0 END
> .machinetmp222: No such file or directory
> bash: line 0: cd: /afs/atc.unican.es/u/m/mverissi/WIEN2k/sro1sto6:
> Permission denied
>  Cannot open error-file
> ERRFLG - couldn't open errorflag-file.
> The fact that from inside lapw1para the ssh command cannot cd to my home
> directory puzzles me... it seems to be a system problem, then. However, if
> you have any suggsestions, they will be more than welcome!
> Thanks,
> Marcos
>
> On Tue, Jul 27, 2010 at 4:27 PM, Laurence Marks <L-marks at northwestern.edu>
> wrote:
>>
>> I doubt (although I may be wrong) that this has anything to do with
>> the OS. Do you have -traceback in your compile options? This will give
>> information as to which program this is happening in. Also, are you
>> running mpi or not?
>>
>> 2010/7/27 Marcos Veríssimo Alves <marcos.verissimo.alves at gmail.com>:
>> > Hi Stefaan and Laurence,
>> > @Stefaan: I will try it.
>> > @Laurence: it's the latest version, which I have downloaded about two
>> > weeks
>> > ago. Hope this helps.
>> > Thanks,
>> > Marcos
>> > On Tue, Jul 27, 2010 at 3:47 PM, Laurence Marks
>> > <L-marks at northwestern.edu>
>> > wrote:
>> >>
>> >> Is this the latest version, or an older one? Some changes were made in
>> >> the error file access in the latest version for mpi reasons.
>> >>
>> >> 2010/7/27 Marcos Veríssimo Alves <marcos.verissimo.alves at gmail.com>:
>> >> > Hi all,
>> >> >
>> >> > I am experiencing a problem in the execution in parallel over
>> >> > k-points.
>> >> >
>> >> > I have compiled the code successfully in a cluster running Debian
>> >> > Linux
>> >> > and
>> >> > with SGEEE as the queue system using ssh as the means to launch the
>> >> > instances on the remote nodes, with /bin/bash as the shell. My script
>> >> > successfully creates a .machines file and when I run runsp_lapw -p
>> >> > -NI
>> >> > -cc
>> >> > 0.0001, the process dies. This is because, for some reason, lapw1para
>> >> > is
>> >> > not
>> >> > being able to write to the up(dn)lapw1_*.error files:
>> >> >
>> >> > forrtl: severe (47): write to READONLY file, unit 99, file
>> >> > /afs/atc.unican.es/u/m/mverissi/WIEN2k/sro1sto6/uplapw1_1.error
>> >> >
>> >> > And the same happens to the dnlapw1_*.error files.
>> >> >
>> >> > lapw0, on the other hand, runs fine. I have set up parallel execution
>> >> > successfully on my dual-core desktop using ssh, using pretty much the
>> >> > same
>> >> > stuff, and it runs perfectly well.
>> >> >
>> >> > Now, I have changed the write permissions of the directory (and all
>> >> > the
>> >> > files) with chmod -R ugo+rw /afs/atc.unican.es/u..., but to no avail.
>> >> > Has
>> >> > anyone experienced any problem like this before? Could there be any
>> >> > known
>> >> > (but obscure) reason why lapw1para would not be able to write to its
>> >> > files,
>> >> > but lapw0para would?
>> >> >
>> >> > Best regards,
>> >> >
>> >> > Marcos
>> >> >
>> >> > _______________________________________________
>> >> > Wien mailing list
>> >> > Wien at zeus.theochem.tuwien.ac.at
>> >> > http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>> >> >
>> >> >
>> >>
>> >>
>> >>
>> >> --
>> >> Laurence Marks
>> >> Department of Materials Science and Engineering
>> >> MSE Rm 2036 Cook Hall
>> >> 2220 N Campus Drive
>> >> Northwestern University
>> >> Evanston, IL 60208, USA
>> >> Tel: (847) 491-3996 Fax: (847) 491-7820
>> >> email: L-marks at northwestern dot edu
>> >> Web: www.numis.northwestern.edu
>> >> Chair, Commission on Electron Crystallography of IUCR
>> >> www.numis.northwestern.edu/
>> >> Electron crystallography is the branch of science that uses electron
>> >> scattering and imaging to study the structure of matter.
>> >> _______________________________________________
>> >> Wien mailing list
>> >> Wien at zeus.theochem.tuwien.ac.at
>> >> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>> >
>> >
>> > _______________________________________________
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>> >
>> >
>>
>>
>>
>> --
>> Laurence Marks
>> Department of Materials Science and Engineering
>> MSE Rm 2036 Cook Hall
>> 2220 N Campus Drive
>> Northwestern University
>> Evanston, IL 60208, USA
>> Tel: (847) 491-3996 Fax: (847) 491-7820
>> email: L-marks at northwestern dot edu
>> Web: www.numis.northwestern.edu
>> Chair, Commission on Electron Crystallography of IUCR
>> www.numis.northwestern.edu/
>> Electron crystallography is the branch of science that uses electron
>> scattering and imaging to study the structure of matter.
>> _______________________________________________
>> Wien mailing list
>> Wien at zeus.theochem.tuwien.ac.at
>> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>
>
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>
>



-- 
Laurence Marks
Department of Materials Science and Engineering
MSE Rm 2036 Cook Hall
2220 N Campus Drive
Northwestern University
Evanston, IL 60208, USA
Tel: (847) 491-3996 Fax: (847) 491-7820
email: L-marks at northwestern dot edu
Web: www.numis.northwestern.edu
Chair, Commission on Electron Crystallography of IUCR
www.numis.northwestern.edu/
Electron crystallography is the branch of science that uses electron
scattering and imaging to study the structure of matter.


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